v: to perpetually analyze, correct, and "shoot holes through" conversation, writing, and thinking of everyone in your vicinity
n: a person who performs the verb action of "Terryberry"
Professor: "Considering the facts, no assumption can be made in either direction."
Student 1: "He just had a dangling modifier in his powerpoint; the assumption is not considering anything."
Student 2 (verb form): "Stop Terryberrying the professor."
Student 2 (noun form): "Stop being such a Terryberry."